Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve · 2000
80 539 km²
Commune · MAR
Errachidia
Morocco
BWhArid, desert, hot(85 %)
Species observed
783
Observations
7 929
Area
7 418,5km²
Ecological tissue
Sample of 24 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Errachidia : 19 espèces reliées par 33 interactions GloBI sur 3 types (connectance 12.0%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
24
Interactions affichées
33
Connectance
0.120
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
783 distinct species · 7 929 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
19,3°C
Annual rain
151mm
Warmest m°
36,6°C
Coldest m°
1,6°C
Elevation: 1 172 m on average (min 855 m, max 2 251 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
19,3°C
Annual rain
151mm
Warmest month
36,6°C
Coldest month
1,6°C
Mean alt.
1 172m
Min
855m
Max
2 251m
Std. dev.
242m
Köppen-Geiger (dominant)
BWhArid, desert, hot(85 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
8,1
Org. C
7,2g/kg
Clay
21,9%
Sand
50,3%
Silt
27,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Errachidia
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
8,1
Org. C
9,8g/kg
Clay
20,9%
Sand
51,1%
Silt
27,9%
5–15 cm
pH H₂O
8,1
Org. C
5,7g/kg
Clay
22,2%
Sand
50,1%
Silt
27,7%
15–30 cm
pH H₂O
8,1
Org. C
6,2g/kg
Clay
22,6%
Sand
49,6%
Silt
27,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest0.7%
Crops0.4%
Built-up0.1%
Bare soil89.0%
Other (grassland, water…)9.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology21 basins · 1 lakes · 13 rivers
Hydrology metrics for this exact territory
Stream length here
744,0km
Lake surface here
5,34km²
Basins crossed
21
Max stream order
5
Max drainage
26 793km²
Discharge in basins
34,5m³/s
Mean precip.
141mm/an
Mean T°
18,3°C
Moisture idx
-0,91
Mean runoff
36mm/an
Mean elev. (basins)
1 138m
Watersheds crossing here
- Bassin de Oued Aoufoussub-area1 989,5 km²overlap1445.20 km²19%
- Bassin de Oued Guir ⴰⵙⵉⴼ ⵏ ⴳⵉⵔ وادي قيرsub-area1 431,3 km²overlap1262.04 km²17%
- Bassin de Oued Ziz ⴰⵙⵉⴼ ⵏ ⵣⵉⵣ وادي زيزsub-area1 292,8 km²overlap1134.08 km²15%
- Bassin de Oued Ziz ⴰⵙⵉⴼ ⵏ ⵣⵉⵣ وادي زيزsub-area619,7 km²overlap601.98 km²8%
- Bassin de Oued Tarda ⴰⵙⵉⴼ ⵏ ⵜⴰⵔⴷⴰ وادي تاردةsub-area867,4 km²overlap465.08 km²6%
- Bassin de Oued Guir ⴰⵙⵉⴼ ⵏ ⴳⵉⵔ وادي قيرsub-area456,2 km²overlap425.27 km²6%
- Bassin de Oued Guirsub-area1 617,9 km²overlap389.00 km²5%
- Basin #26100sub-area364,6 km²overlap312.33 km²4%
- Bassin de Oued Guir ⴰⵙⵉⴼ ⵏ ⴳⵉⵔ وادي قيرsub-area284 km²overlap283.79 km²4%
12 more basinssorted by overlap
- Bassin de Oued Guir ⴰⵙⵉⴼ ⵏ ⴳⵉⵔ وادي قيرsub-area957,5 km²overlap282.34 km²4%
- Bassin de Oued Mayoussef وادي مايوسفsub-area237,1 km²overlap236.95 km²3%
- Bassin de Oued Ziz ⴰⵙⵉⴼ ⵏ ⵣⵉⵣ وادي زيزsub-area939,8 km²overlap156.65 km²2%
- Bassin de Oued Gheris ⴰⵙⵉⴼ ⵏ ⵖⵔⵉⵙ وادي اغريسsub-area2 012,5 km²overlap89.10 km²1%
- Bassin de Oued Ziz ⴰⵙⵉⴼ ⵏ ⵣⵉⵣ وادي زيزsub-area813,2 km²overlap80.18 km²1%
- Bassin de oued bouananesub-area979,5 km²overlap71.78 km²1%
- Bassin de Oued Guirsub-area1 486,8 km²overlap42.18 km²1%
- Bassin de Oued Ait Aissasub-area1 815 km²overlap40.85 km²1%
- Bassin de Oued Guir ⴰⵙⵉⴼ ⵏ ⴳⵉⵔ وادي قيرsub-area328,8 km²overlap37.89 km²1%
- Bassin de Oued Guir ⴰⵙⵉⴼ ⵏ ⴳⵉⵔ وادي قيرsub-area231,5 km²overlap27.65 km²0%
- Bassin de Oued Guir ⴰⵙⵉⴼ ⵏ ⴳⵉⵔ وادي قيرsub-area225,3 km²overlap24.12 km²0%
- Bassin de Oued Gheris ⴰⵙⵉⴼ ⵏ ⵖⵔⵉⵙ وادي اغريسsub-area648 km²overlap10.05 km²0%
Lakes (1, top by area)
Rivers / streams (13, ord ≥ 4)
- Oued Ziz ⴰⵙⵉⴼ ⵏ ⵣⵉⵣ وادي زيزord 5len here255.09 km40%total631 km
- Oued Guir ⴰⵙⵉⴼ ⵏ ⴳⵉⵔ وادي قيرord 6len here190.04 km50%total383 km
- Oued Aoufousord 3len here118.24 km100%total118 km
- Oued Tarda ⴰⵙⵉⴼ ⵏ ⵜⴰⵔⴷⴰ وادي تاردةord 5len here58.53 km49%total120 km
- Oued Douissord 2len here43.29 km100%total43 km
- Oued Mayoussef وادي مايوسفord 2len here33.83 km100%total34 km
- Akka Zidetord 2len here14.77 km65%total23 km
- Oued R'Malord 1len here7.89 km100%total8 km
- wad al bidord 2len here6.29 km100%total6 km
- Oued Mayoussef ⴰⵙⵉⴼ ⵏ ⵎⴰⵢⵓⵙⴼ وادي مايوسفord 3len here6.10 km100%total6 km
- Oued R'Mal ⴰⵙⵉⴼ ⵏ ⵕⵎⵍord 2len here4.98 km100%total5 km
- Oued Idoumaord 1len here4.65 km37%total13 km
1 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,2nW
Built-up
5,2%
Pesticides
0,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas6
IUCN Not Applicable · 5IUCN Not Reported · 1
Rissani
IUCN Not ApplicablePermanent Hunting Reserve · 2021
15 945 km²
Aferdou - Errachidia
IUCN Not ApplicablePermanent Hunting Reserve · 2021
393 km²
Oasis du Tafilalet
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2005
153 km²
Frontière Figuig - Algerie
IUCN Not ApplicablePermanent Hunting Reserve · 2021
150 km²
El Kheng
IUCN Not ApplicableBiological and Ecological Interest Site · 1994
62 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN